The 15633 / 15634 Bikaner–Guwahati Express is an Express train belonging to Northeast Frontier Railway zone that runs between Bikaner Junction in Rajasthan and Guwahati in Assam in India. It is currently being operated with 15633/15634 train numbers on weekly basis.^[1][2][3]

• 15633 Bikaner–Guwahati Express has an average speed of 48 km/h and covers 2314 km in 48h 25m.
• 15634 Guwahati–Bikaner Express has an average speed of 52 km/h and covers 2314 km in 44h 25m.

The important halts of the train are:

RAJASTHAN:

1. Bikaner (originates)
2. Nokha
3. Nagaur
4. Merta Road Junction
5. Jaipur Junction
6. Bharatpur Junction

UTTAR PRADESH:

1. Agra Fort
2. Tundla Junction
3. Kanpur Central
4. Prayagraj Junction
5. Pt. Deen Dayal Upadhyaya Junction

BIHAR:

1. Patna Junction
2. Barauni Junction
3. Katihar Junction
4. Kishanganj

WEST BENGAL:

1. Dalkhola
2. New Jalpaiguri (Siliguri)
3. New Cooch Behar
4. New Alipurduar

ASSAM:

1. New Bongaigaon
2. Barpeta Road
3. Rangiya
4. Kamakhya
5. Guwahati (terminates)

The train consists of 18 coaches:

• 1 AC III Tier
• 5 Sleeper coaches
• 2 General
• 1 Pantry car
• 2 Second-class Luggage/parcel van

As the route is yet to be fully electrified, it is hauled by a Bhagat Ki Kothi Loco Shed-based WDP-4 / WDP-4B / WDP-4D diesel locomotive up to Agra Fort and is then transferred to a Jhansi Loco Shed-based WAP-4 electric locomotive for the remainder of the journey until Guwahati, and vice versa.

The train is attached to 15631/15632 Barmer–Guwahati Express at Merta Road Junction.

The train reverses its direction once:

• Merta Road Junction

On January 13, 2022, Bikaner Guwahati Express got derailed between New Domohani and New Maynaguri railway station near Jalpaiguri in West Bengal at around 5 pm IST.^{[4] [5]}

• Bikaner Junction railway station
• Guwahati railway station
• Barmer–Guwahati Express
• Mainaguri train accident - On 13 January 2022, Bikaner–Guwahati Express train derailed near Mainaguri, Jalpaiguri district, West Bengal.^[6]